WO2014094702A2 - Procédé de montage pour un extensomètre - Google Patents
Procédé de montage pour un extensomètre Download PDFInfo
- Publication number
- WO2014094702A2 WO2014094702A2 PCT/DE2013/000681 DE2013000681W WO2014094702A2 WO 2014094702 A2 WO2014094702 A2 WO 2014094702A2 DE 2013000681 W DE2013000681 W DE 2013000681W WO 2014094702 A2 WO2014094702 A2 WO 2014094702A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insert
- opening
- strain gauge
- circumferential surface
- wedge pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2287—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges constructional details of the strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
Definitions
- the present invention relates to a method for gluing a strain gauge in an opening according to the features in the preamble of claim 1.
- Mechanical components in particular steel components are subject to intensive use and wear resulting from their use.
- the abrasive wear on surfaces can be determined by non-destructive material testing sometimes already by optical inspection.
- the object of the present invention starting from the prior art, to show a method with which it is possible to arrange strain gauges in complex installation situations, in particular on the inner surface of openings or holes professionally with high reproducibility.
- the method according to the invention for gluing a strain gauge into an opening of a component, in particular into a hole, in a metallic component is characterized by the following method steps:
- the insert has an outer lateral surface which essentially corresponds to the inner lateral surface of the opening and has on its outer lateral surface a receptacle for the strain gauge, wherein the strain gauge is inserted into the receptacle,
- a corresponding component in particular a steel chain, for example a link chain or else a round steel link chain or a similar chain is provided.
- the area to be monitored or the chain component to be monitored is then provided with an opening in the form of a bore, wherein the bore is first pretreated in such a way that a chemical and / or physical cleaning takes place.
- the inner circumferential surface of the bore is optimally prepared for the subsequent bonding process of the strain gauge.
- an insert which has a geometrical outer contour which is designed to correspond essentially to the inner contour of the opening, in particular of the bore.
- a clearance fit is formed here between the insert and the opening, so that always a minimal gap between the outer circumferential surface of the insert and the inner circumferential surface of the opening remains. This ensures that the insert is particularly easy to insert initially in the opening.
- the insert itself has a receptacle, in particular in the form of a recess on the outer circumferential surface to accommodate the DehmessstMail.
- the strain gauge is now inserted into the receptacle of the insert and it is an adhesive applied to the Dehmessstsammlung and / or an adhesive introduced into the inner circumferential surface of the opening. Subsequently, the insert with the strain gauge is inserted into the opening and can be positioned by rotation, that the strain gauge is pre-positioned at the desired location of the inner circumferential surface.
- the insert itself has a guide, in particular in the form of a guide slot, wherein the guide slot is arranged in the radial direction below the DehmessstMails.
- a wedge pin is now introduced, wherein the wedge pin on the radial direction relative to the inner side of the insert comes to rest and engages on the opposite side of the strain gauge. Due to the wedge shape, in particular the wedge tip, the wedge pin now raises the strain gauge and presses or presses this relative to the radial direction of the inner circumferential surface of the opening. The strain gauge is thereby pressed homogeneously over its entire surface to the inner circumferential surface, wherein the strain gauge itself is again positioned exactly relative to the radial and axial direction of the opening. This ensures that, on the one hand, the introduction of the strain gauge into the opening itself and, on the other hand, the measured values provided by the strain gauge due to the quality of installation are highly reliable and do not depend on the technical skill of the installer mounting the strain gauge.
- connection lines for the strain gauges can be guided, for example, through the guide slot of the removed wedge pin or else already be present on the strain gauge and led out of the insert through cable openings or cable channels to a sensor.
- the method according to the invention is suitable for gluing strain gauges into a bore, the bore having a diameter in the range from 5 mm to 100 mm, preferably from 8 mm to 80 mm, very particularly preferably from 10 mm to 50 mm.
- a finger of an applying mechanic in the hole itself.
- the method is thus also suitable for the automation of the Einbringvorganges one Strain gauge in a corresponding bore and at the same time increases the accuracy of the introduced with the inventive method in the opening strain gauges results.
- the strain gauge is first applied to a carrier, in particular, the strain gauge is glued to the carrier itself, wherein the carrier has a curvature which substantially corresponds to the curvature of the inner circumferential surface of the opening.
- the support makes it possible to position the strain gauge in the insert while avoiding damage to the strain gauge when lifted by the wedge pin on the underside.
- the carrier also distributes the contact forces applied by the wedge pin area, so that also no damage to the DehnmessstMails due to the pressing by the wedge pin occurs.
- the carrier has a curvature corresponding to the inner circumferential surface of the opening.
- the insert itself, the wedge pin and / or the carrier are preferably made of a plastic, in particular of an injection-molded plastic.
- the wedge pin is formed in the context of the invention of a metallic material, in particular of a steel material, so that it is not self-compressible during the Anpressvorganges, but according to the resulting by the insertion of the wedge pin pressure force on the carrier and thus on the To be attached strain gauge transmits.
- a clearance fit is formed between the insert and the opening itself.
- the insert is circular in cross-section and inserted into a bore.
- the insert itself then has in turn on its outer circumferential surface relative to this projecting cams, which center the insert in the opening itself.
- the cams can taper so that they are slightly compressed and / or compressed in the insertion process and center the insert in the opening accordingly.
- the insert itself may have further centering contours in order to support a positionally correct positioning. These centering contours can be used in the radial direction in particular in the Center bore, but also in the axial direction.
- a centering contour in the axial direction is designed such that it is designed as a stop, so that the insert can only be pushed into the bore in the axial direction to a certain extent. This avoids that the insert pushed through the hole or accidentally pushed too deep into the hole. This in turn increases the precision of the positioning of the strain gauge within the bore, especially in the axial direction.
- the insert and the carrier are preferably, as already described above, formed from a plastic. These can be made of each other as separate components. Optionally, however, it is also possible within the scope of the invention that the insert and the carrier are formed in one piece and of the same material, with a coupling being present between the carrier and the insert.
- the coupling itself may be formed for example in the form of webs or connecting pins, which are then stretched upon insertion of the wedge pin in the guide or break or tear, so that the carrier is pressed radially outward against the inner circumferential surface of the bore.
- the method according to the invention is also suitable for the fact that two, three or even several strain gauges are radially distributed in the bore at the same time.
- the plurality of DehmessstMail are then distributed distributed on the outer surface of the insert and inserted with the insert into the bore.
- By a central wedge pin and a corresponding power transmission it is then possible to press the strain gauges to the inner surface of the bore and wait for the curing process.
- the strain gauge is then in turn connected via electrical connection lines with an evaluation unit or else, for example, a radio transmitter and / or an energy source.
- the connection lines can already be fastened directly to the strain gauge and can be brought out of the bore via a recess or recess on the insert.
- the insert itself as a carrier for a Control electronics and / or can serve for an evaluation. Furthermore, it is possible to accommodate a radio transmitter or even another wireless transmission transmitter in the insert itself, so that from here the data recorded via the strain gauges can be transmitted to an evaluation unit by means of wireless transmission. In the context of the invention, it is also possible that the insert itself as a receptacle and / or housing, for example, for an accumulator, in particular a battery, which supplies the control and evaluation electronics and the wireless data transmission with energy form.
- the insert has at least one circumferential seal, so that the bore is sealed by the insert itself. This avoids moisture and / or dirt, in particular corrosive moisture, getting into the bore and falsifying the measurements with the strain gauge or even damaging the strain gauge.
- the insert in such a way that it has receiving points, for example in the form of insertion holes, in order to place a corresponding cover on the insert, wherein the cover in turn completely, in particular fluid-tight, closes the bore or opening. In the latter cases, the insert would then remain installed in operation in each case in the hole.
- Figure 1 shows an insert according to the invention with the DehmessstMail on a
- Figure 2 is an exploded view of a device with upstream use, support, strain gauges and wedge pin;
- Figure 3a shows an embodiment of the method according to the invention in the individual to c steps and Figure 4a shows a possible installation situation of a DehnmessstMails with use in to a web of a chain link d.
- FIG. 1 shows an insert 1 according to the invention which is used as an auxiliary tool for the method according to the invention.
- the insert 1 itself is formed in the form of a cylindrical body 2, with respect to an outer circumferential surface 3 protrude cams 4, which center the insert 1 in a corresponding bore 10 and opening.
- a receptacle 5 is formed, wherein the receptacle 5 is formed in the form of a recess.
- the receptacle 5 itself in turn has two insertion openings 8, through which a wedge pin, not shown here, can be inserted.
- Figure 2 shows the exploded view of the component 9 with an opening in the form of a bore 10.
- the bore 10 in this case has an inner circumferential surface 1 1, which substantially corresponds to the outer circumferential surface 3 of the insert 1.
- the cams 4 which oppose the outer circumferential surface 3 rest on the inner circumferential surface of the component 9 and center the insert 1 in the bore 10, which is shown in FIG. 3a.
- the carrier 6 itself has on its surface a curvature 12, which substantially corresponds to the curvature of the inner circumferential surface 1 1 of the bore 10.
- the strain gauge 7 is placed on the curvature 12 and / or glued.
- the carrier 6 itself then rests on supports 13 in the receptacle 5 in the insert 1.
- the carrier 6 is raised together with the strain gauge 7 in the radial direction R and pressed against the inner circumferential surface 1 1 of the bore 10.
- the wedge pin 14 itself has a wedge tip 5 and can, for example, as shown in Figure 3c, for example, completely through the insert 1 are performed.
- the wedge pin 14 is then on a lower surface 16 and the support 13 in the receptacle 5 and presses the strain gauge 7 to the inner circumferential surface 11 of the bore, so that a non-illustrated adhesive for gluing the DehnmessstMails 7 with the inner circumferential surface 1 1 provides.
- Figures 4a to d show various views of a chain link 17, wherein the chain link 17 itself has two legs 18 and a leg 18 extending between the legs 19.
- the insert 1 with wedge pin 14 and Dehmessst Shape 7 is introduced with the inventive method.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
La présente invention concerne un procédé pour coller un extensomètre (7) dans une ouverture (8), qui comprend les étapes de procédé suivantes : préparation de la pièce (9), - nettoyage de la surface latérale intérieure (11) de l'ouverture (8), - préparation d'un insert (1), l'insert (1) présentant une surface latérale extérieure (3) qui correspond sensiblement à la surface latérale intérieure (11) de l'ouverture (8) et qui présente un logement (5) pour l'extensomètre (7) sur sa surface latérale extérieure (3), l'extensomètre (7) étant mis en place dans le logement (5), - introduction d'une colle dans l'ouverture (8) et/ou dépôt d'une colle sur l'extensomètre (7), - mise en place de l'insert dans l'ouverture (8), l'extensomètre (7) étant placé à proximité de la région de la surface latérale intérieure (11) à laquelle il doit être fixé, - introduction d'une tige de calage (14) dans un guide de l'insertion (1), la tige de calage (14) entrant en contact avec l'extensomètre (7) sur son côté inférieur et le soulevant par rapport à l'insert (1) et le pressant contre la surface latérale intérieure (11), - durcissement au moins partiel de la colle et enlèvement facultatif de la tige de calage (14) et/ou de l'insert (1) hors de l'ouverture (8).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2013362351A AU2013362351B2 (en) | 2012-12-21 | 2013-11-14 | Mounting method for a strain gage |
| US14/654,385 US20150330846A1 (en) | 2012-12-21 | 2013-11-14 | Mounting method for a strain gage |
| CN201380071095.XA CN104937058B (zh) | 2012-12-21 | 2013-11-14 | 应变片的安装方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012112947.9 | 2012-12-21 | ||
| DE201210112947 DE102012112947B3 (de) | 2012-12-21 | 2012-12-21 | Montageverfahren für einen Dehnmessstreifen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2014094702A2 true WO2014094702A2 (fr) | 2014-06-26 |
| WO2014094702A3 WO2014094702A3 (fr) | 2014-11-06 |
Family
ID=49384690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2013/000681 Ceased WO2014094702A2 (fr) | 2012-12-21 | 2013-11-14 | Procédé de montage pour un extensomètre |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150330846A1 (fr) |
| CN (1) | CN104937058B (fr) |
| AU (1) | AU2013362351B2 (fr) |
| DE (1) | DE102012112947B3 (fr) |
| WO (1) | WO2014094702A2 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2715890C1 (ru) * | 2019-06-05 | 2020-03-04 | Публичное акционерное общество "ОДК-Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") | Способ закрепления тензорезистора на поверхности детали |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015121415A1 (fr) * | 2014-02-14 | 2015-08-20 | Continental Teves Ag & Co. Ohg | Procédé de fabrication d'un capteur et capteur obtenu par ce procédé |
| WO2015121416A1 (fr) * | 2014-02-14 | 2015-08-20 | Continental Teves Ag & Co. Ohg | Procédé de fabrication d'un capteur et capteur obtenu par ce procédé |
| CN107532953A (zh) * | 2015-03-31 | 2018-01-02 | 株式会社NejiLaw | 带通电路径的部件和通电路径的图案化方法及部件变化测量方法 |
| DE102015106933A1 (de) * | 2015-05-04 | 2016-11-10 | Technische Universität Darmstadt | Maschinenelement mit einer Sensoreinrichtung und Verfahren zur Herstellung eines Maschinenelements |
| CN105821767B (zh) * | 2016-03-23 | 2017-12-05 | 中交第二航务工程局有限公司 | 短线匹配法预制箱梁可调式钢筋笼绑扎胎架的方法 |
| NL2018463B1 (en) * | 2017-03-02 | 2018-09-21 | Rotortug Holding B V | Smartlink |
| US11604105B2 (en) * | 2018-12-05 | 2023-03-14 | 4Iiii Innovations Inc. | Adhesive strain sensing pods with improved protection |
| DE102019116534B3 (de) | 2019-06-18 | 2020-07-23 | Thiele Gmbh & Co. Kg | Kettenkraftmessung an Kettenförderern |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10234626A1 (de) | 2002-07-29 | 2004-02-26 | Thiele Gmbh & Co. Kg | Sicherheitsbauteile aus Stahl für die Hebe-,Zurr-,Förder -und Gewinnungstechnik |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4407686A (en) * | 1981-11-17 | 1983-10-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Inflatable device for installing strain gage bridges |
| US6687623B2 (en) * | 2000-05-17 | 2004-02-03 | Ntn Corporation | Real time bearing load sensing |
| GB0515176D0 (en) * | 2005-07-23 | 2005-08-31 | Renold Plc | Transmission chain monitoring system |
| JP2009186204A (ja) * | 2008-02-04 | 2009-08-20 | Mitsuboshi Belting Ltd | 歯荷重分担測定用プーリ用歪ゲージの取り付け治具及びそれを用いた歪ゲージの取り付け方法 |
| CN101762349A (zh) * | 2009-10-22 | 2010-06-30 | 中国船舶重工集团公司第七0四研究所 | 高精度智能标准扭矩传感器 |
-
2012
- 2012-12-21 DE DE201210112947 patent/DE102012112947B3/de not_active Expired - Fee Related
-
2013
- 2013-11-14 US US14/654,385 patent/US20150330846A1/en not_active Abandoned
- 2013-11-14 AU AU2013362351A patent/AU2013362351B2/en not_active Ceased
- 2013-11-14 WO PCT/DE2013/000681 patent/WO2014094702A2/fr not_active Ceased
- 2013-11-14 CN CN201380071095.XA patent/CN104937058B/zh not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10234626A1 (de) | 2002-07-29 | 2004-02-26 | Thiele Gmbh & Co. Kg | Sicherheitsbauteile aus Stahl für die Hebe-,Zurr-,Förder -und Gewinnungstechnik |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2715890C1 (ru) * | 2019-06-05 | 2020-03-04 | Публичное акционерное общество "ОДК-Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") | Способ закрепления тензорезистора на поверхности детали |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150330846A1 (en) | 2015-11-19 |
| CN104937058A (zh) | 2015-09-23 |
| WO2014094702A3 (fr) | 2014-11-06 |
| AU2013362351A1 (en) | 2015-07-09 |
| DE102012112947B3 (de) | 2013-11-07 |
| CN104937058B (zh) | 2016-08-24 |
| AU2013362351B2 (en) | 2016-07-21 |
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